<template>
  <el-container class="home-container">
    <!-- 侧边栏 -->

    <el-aside :width="isCollapse ? '64px' : '230px'">
      <!-- 头部logo -->
      <el-scrollbar class="menu_scrollbar" style="height:100%;overflow-x: hidden;">
        <template>
          <div class="header-title" v-if="!isCollapse">
            <!--<img width="35px" height="35px" src="../assets/logo.png" style="border-radius: 5px" />-->
            <span style="font-weight: bold">永杰西餐厅后台系统</span>
          </div>
          <div class="header-title-hiddle" v-else>
            <img width="40px" height="40px" src="../assets/logo.png" style="border-radius: 5px" />
          </div>
        </template>

        <!-- 菜单区域 -->
        <el-menu
          background-color="#282C34"
          text-color="#fff"
          active-text-color="#fff"
          :collapse="isCollapse"
          :collapse-transition="false"
          :default-active="'/' + activePath"
          router
        >
          <!--unique-opened 是否只保持一个子菜单的展开-->
          <!-- 首页 -->
          <el-menu-item
            :index="item.path"
            v-for="item in menuList3"
            :key="item.id"
            @click="selectMenu(item)"
          >
            <i :class="item.class"></i>
            <span slot="title">{{ item.label }}</span>
          </el-menu-item>
          <el-submenu index="1">
            <template slot="title">
              <i class="el-icon-location"></i>
              <span>校务管理</span>
            </template>
            <el-menu-item-group>
              <el-menu-item
                :index="item.path"
                v-for="item in menuList1"
                :key="item.id"
                @click="selectMenu(item)"
              >
                <i :class="item.class"></i>
                <span slot="title">{{ item.label }}</span>
              </el-menu-item>
            </el-menu-item-group>
          </el-submenu>
          <el-submenu index="2">
            <template slot="title">
              <i class="el-icon-location"></i>
              <span>记录查询</span>
            </template>
            <el-menu-item-group>
              <el-menu-item
                :index="item.path"
                v-for="item in menuList2"
                :key="item.id"
                @click="selectMenu(item)"
              >
                <i :class="item.class"></i>
                <span slot="title">{{ item.label }}</span>
              </el-menu-item>
            </el-menu-item-group>
          </el-submenu>
          <el-menu-item
            :index="item.path"
            v-for="item in menuList"
            :key="item.id"
            @click="selectMenu(item)"
          >
            <i :class="item.class"></i>
            <span slot="title">{{ item.label }}</span>
          </el-menu-item>
        </el-menu>
      </el-scrollbar>
    </el-aside>

    <!-- 主体 -->
    <el-container>
      <!-- 头部 -->
      <el-header>
        <!-- 头部导航栏 -->
        <div class="header-row">
          <!-- 折叠 展开 和 名人名言 -->
          <div class="toggle-button">
            <div class="tabs-switch-page">
              <el-tag
                size="medium"
                v-for="(tab, index) in tabList"
                :key="tab.name"
                @close="handleClose(tab, index)"
                @click="changeMenu(tab)"
                :closable="tab.name !== 'home'"
                :effect="activePath === tab.name ? 'dark' : 'plain'"
              >{{ tab.label }}</el-tag>
            </div>
            <!--<div>
              <i :title="isCollapse ? '展开' : '收起'" class="fa fa-bars" @click="toggleCollapse"></i>
            </div>
            <div style="height: 25px; width: 100%; margin-left: 10px">
              <div
                style="
                  float: left;
                  color: #e74405;
                  font-size: 16px;
                  height: 25px;
                  line-height: 25px;
                "
              >
                <i class="fa fa-bullhorn"></i>
              </div>
              <el-carousel
                height="25px"
                direction="vertical"
                indicator-position="none"
                autoplay
                :interval="8000"
              >
                <el-carousel-item v-for="item in mottoList" :key="item">
                  <h3 class="medium">{{ item }}</h3>
                </el-carousel-item>
              </el-carousel>
            </div>-->
          </div>

          <!-- 头像下拉菜单 -->
          <div class="header-avatar">
            <div class="user">系统管理员，您好！</div>
            <el-dropdown @command="handleCommand">
              <span class="el-dropdown-link">
                <img
                  width="35"
                  height="35"
                  style="border-radius: 50%; background: #dddddd"
                  src="../assets/images/index/user3.png"
                  alt
                />
                <i class="el-icon-arrow-down el-icon--right"></i>
              </span>
              <el-dropdown-menu slot="dropdown">
                <el-dropdown-item command="update-password">修改密码</el-dropdown-item>
                <el-dropdown-item command="logout">退出登录</el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>
          </div>
        </div>

        <!-- tab标签页区域 - 用于标签页切换 -->
        <!--<div class="tabs-switch-page">
          <el-tag
            size="medium"
            v-for="(tab, index) in tabList"
            :key="tab.name"
            @close="handleClose(tab, index)"
            @click="changeMenu(tab)"
            :closable="tab.name !== 'home'"
            :effect="activePath === tab.name ? 'dark' : 'plain'"
          >{{ tab.label }}</el-tag>
        </div>-->
      </el-header>

      <!-- 内容区 -->
      <el-main>
        <!-- 路由占位符，用于展示内容区的内容 -->
        <div style="padding: 15px; height:95%">
          <keep-alive :include="catch_components">
            <router-view />
          </keep-alive>
        </div>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
// eslint-disable-next-line no-unused-vars
import { mapState, mapMutations } from "vuex";
export default {
  components: {},
  //组件被创建
  created() {
    //加载菜单
    this.loadMenu();
  },
  computed: {
    ...mapState({
      // 从 state 中的到的计算属性
      activePath: (state) => state.activePath, // 已选中菜单
      tabList: (state) => state.tabList, // tags菜单列表
      catch_components: (state) => state.catch_components, // keepalive缓存
    }),
  },
  data() {
    return {
      //菜单列表
      menuList: [],
      menuList1: [],
      menuList2: [],
      // 折叠-展开 默认false不折叠
      isCollapse: false,
      // 系统公告
      mottoList: [
        //"等风来不如追风去，追逐的过程就是人生的意义",
        //"当你想要放弃了，那就想想当初为什么开始",
        //"自强之人谁也打不倒，自弃之人谁也带不动",
        //"既然无法选择回去的路程，那么就清晰的面对已经造成的挑战",
        //"在难过的时候，不要忘记自己还要前进",
        //"人生能有几次搏？莫到白发还未博",
      ],
    };
  },
  methods: {
    // 右上角下拉菜单点击事件
    handleCommand(command) {
      switch (command) {
        // 退出
        case "logout":
          //消息提示
          this.msg.success("退出登录");
          //重置vuex中的数据
          this.$store.commit("clearVUEX");
          //跳转到首页
          this.$router.push("/index");
          break;
        //修改密码
        case "update-password":
          //消息提示
          this.msg.success("修改密码");
          break;
      }
    },
    // 点击折叠 展开菜单
    toggleCollapse() {
      this.isCollapse = !this.isCollapse;
    },
    // 点击菜单 - 传入name，添加到keepalive缓存页面
    selectMenu(item) {
      // 加入keepalive缓存
      this.$store.commit("addKeepAliveCache", item.name);
      //添加tags标签
      //访问wellcome 就代表home
      var name = item.name === "wellcome" ? "home" : item.name;
      var submenu = {
        path: name,
        name: name,
        label: item.label,
      };
      //修改选中菜单
      this.$store.commit("selectMenu", submenu);
    },
    // 关闭tab标签
    handleClose(tab, index) {
      // 历史选中菜单
      var oldActivePath = this.$store.state.activePath;
      // 历史已选中菜单列表
      var oldTabList = this.$store.state.tabList;
      // 计算标签个数
      let length = oldTabList.length - 1;
      // 删除tabList中的该对象
      for (let i = 0; i < oldTabList.length; i++) {
        let item = oldTabList[i];
        if (item.name === tab.name) {
          oldTabList.splice(i, 1);
        }
      }
      // 删除keepAlive缓存
      this.$store.commit("removeKeepAliveCache", tab.name);
      // 如果关闭的标签不是当前路由的话，就不跳转
      if (tab.name !== oldActivePath) {
        return;
      }
      // 如果length为1，必然只剩下首页标签，此时关闭后，更新到首页
      if (length === 1) {
        // 同时存储菜单
        this.$store.commit("closeTab", {
          activePath: "home",
          tabList: oldTabList,
        });
        // tab页向左跳转
        this.$router.push({ name: oldTabList[index - 1].name });
        // 不再向下执行
        return;
      }
      // 关闭的标签是最右边的话，往左边跳转一个
      if (index === length) {
        // 同时更新路径
        oldActivePath = oldTabList[index - 1].name;
        // 同时存储菜单
        this.$store.commit("closeTab", {
          activePath: oldActivePath,
          tabList: oldTabList,
        });
        // tab页向左跳转
        this.$router.push({ name: oldTabList[index - 1].name });
      } else {
        // 同时更新路径
        oldActivePath = oldTabList[index].name;
        // 同时存储菜单
        this.$store.commit("closeTab", {
          activePath: oldActivePath,
          tabList: oldTabList,
        });
        // tab页向右跳转
        this.$router.push({ name: oldTabList[index].name });
      }
    },
    // 点击标签跳转路由
    changeMenu(item) {
      // 历史选中菜单
      var oldActivePath = this.$store.state.activePath;
      // 首先判断点击的是否是自己，如果是自己则return
      if (oldActivePath === item.name) {
        return;
      }
      // 不是自己，存储菜单
      this.$store.commit("changeMenu", item.name);
      // 页面跳转
      this.$router.push({ name: item.name });
    },
    //加载菜单
    loadMenu() {
      this.menuList = [
        {
          id: "number-02",
          class: "fa el-icon-document",
          path: "/dish",
          label: "菜品管理",
          name: "Dish",
        },
        {
          id: "number-03",
          class: "fa el-icon-document",
          path: "/table",
          label: "餐台管理",
          name: "table",
        },
                {
          id: "number-04",
          class: "fa el-icon-document",
          path: "/dishType",
          label: "餐类管理",
          name: "table",
        },
        
        
        {
          id: "number-09",
          class: "fa el-icon-document",
          path: "/checktime",
          label: "报表统计",
          name: "CheckTime",
        },
        {
          id: "number-10",
          class: "fa el-icon-document",
          path: "/check",
          label: "考勤记录",
          name: "Check",
        },
      ];
      this.menuList3 = [
        {
          id: "number-01",
          class: "fa el-icon-ice-cream-round",
          path: "/home",
          label: "首页",
          name: "home",
        },
      ];
    },
  },
};
</script>
<style lang="less" scoped>
::v-deep .element.style {
  height: 100% !important;
}
.el-col-align-middle {
  line-height: 40px;
  text-align: left;
  font-size: 14px;
}
.home-container {
  height: 100%;
}
.el-header {
  color: rgb(0, 0, 0);
  font-size: 20px;
  border-bottom: 1px solid #dddddd;
  //height: 103px !important;
  padding: 0;
  background: #fff;
}
.header-row {
  height: 60px;
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  border-bottom: 1px solid #dddddd;
  overflow: hidden;
}
.header-avatar {
  float: right;
  width: 40%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 20px;
  .user {
    font-size: 14px;
    font-weight: bold;
    padding: 0 10px;
  }
}

.el-aside {
  background-color: #282c34;
  .header-title {
    padding-left: 10px;
    height: 60px;
    font-weight: 300;
    display: flex;
    font-size: 20px;
    align-items: center;
    cursor: pointer;
    color: #ffffff;
    span {
      margin-left: 10px;
    }
  }
  .header-title-hiddle {
    width: 64px;
    height: 60px;
    display: table-cell;
    vertical-align: middle;
    text-align: center;
    color: #ffffff;
    cursor: pointer;
  }
  .el-menu {
    border-right: none;
  }
}
// 菜单选中背景色
.el-menu-item.is-active {
  background-color: #1890ff !important;
}
// 菜单悬浮背景色
.el-menu-item:hover {
  background-color: #1890ff !important;
}
/*去掉横向滚动条*/
.menu_scrollbar .el-scrollbar__wrap {
  overflow-x: hidden !important;
}
::v-deep .menu_scrollbar .el-scrollbar__wrap {
  overflow-x: hidden;
}
// 走马灯
.el-carousel__item h3 {
  color: #ee7c12;
  font-size: 14px;
  opacity: 0.75;
  line-height: 25px;
  margin: 0;
}

.el-main {
  background-color: #eaedf1;
  padding: 0;
}

.fa {
  margin-right: 10px;
}

// 点击展开/折叠按钮
.toggle-button {
  width: 80%;
  font-size: 20px;
  line-height: 40px;
  color: #595959;
  text-align: left;
  display: flex;
  align-items: center;
  float: left;
  padding-left: 20px;
  i {
    cursor: pointer;
  }
}
// 面包屑导航
.el-breadcrumb {
  margin-bottom: 0;
}

// tab页
.tabs-switch-page {
  display: flex;
  align-items: center;
  height: 40px;
  background-color: #fff;
  overflow: hidden;
}
.el-tag {
  cursor: pointer;
  margin-left: 10px;
  border-radius: 2px;
  font-size: 12px;
  color: #1890ff;
  border-color: #1890ff;
}
.el-tag--dark {
  color: #fff;
  background-color: #1890ff;
}

.el-dropdown-link {
  cursor: pointer;
}
.el-icon-arrow-down {
  font-size: 12px;
}

.submit-row {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  align-items: center;
}
</style>
